Having been around for a while — I think I remember first hearing about the journal Anthills about six years ago — Centennial Press is one press I never hear people talk about.  I mean, nothing.  From chapbooks, to broadsides, to perfect-bounds, editor Charles Nevsimal does an excellent job at creating interesting paper works.  One of my favorite pieces is Anthills #4 – a journal of poetry and short prose that on first look appears to be a mini-chapbook but unfolds into a 17×25 poster complete with incredible graphic art. 

The site says submissions are always open, but from what I remember response time is slow and the publication schedule is pretty inconsistent.

Browse the site here.